Respuesta :
Answer: B. The spread of slavery.
Explanation: The main opponents of the Mexican-American War were the Whigs, who also opposed slavery. They feared that with the Mexican-American War, slavery will spread more.
Answer: B. The spread of slavery.
Explanation: The main opponents of the Mexican-American War were the Whigs, who also opposed slavery. They feared that with the Mexican-American War, slavery will spread more.